MESON Chess Problem Database
Problem Display
PID: 30758 (1B2B1b1/7N/N1R2P1p/1P1kP2K/p2pr1np/P2R3P/n3p1Q1/8 w - - 0 1)
Corrias, Antonio G
2nd Place, Il Piccolo Scacchista, 1895
#2
13 + 10
| 2638 | White to Play | 1913 |
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Rc5#
- 1...Bf7+
- 2.Bxf7#
- 1...Bxh7
- 2.Bf7#
- 1...Sc1
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf2
- 2.Qxg8#
- 1...Sh2
- 2.Qxg8#
- 1...Se3
- 2.Qxg8#
- 1...Sxe5
- 2.Sc7#
- 1...Sxf6+
- 2.Sxf6#
- 1...e1Q
- 2.Qxa2#
- 1...e1S
- 2.Qxa2#
- 1...e1B
- 2.Qxa2#
- 1...e1R
- 2.Qxa2#
- 1...Be6
- Tries
- 1.Sf8?
- threat
- 2.Rc5#
- 1...Bf7+
- 2.Bxf7#
- 1...Sxf6+!
- threat
- 1.Bc7?
- 1...Bf7+
- 2.Bxf7#
- 1...Sxf6+
- 2.Sxf6#
- 1...Bxh7
- 2.Bf7#
- 1...e1Q
- 2.Qxa2#
- 1...e1S
- 2.Qxa2#
- 1...e1B
- 2.Qxa2#
- 1...e1R
- 2.Qxa2#
- 1...Be6
- 2.Rc5#
- 1...Sc1
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf2
- 2.Qxg8#
- 1...Sh2
- 2.Qxg8#
- 1...Se3
- 2.Qxg8#
- 1...Sxe5!
- 1...Bf7+
- 1.Bg6?
- threat
- 2.Bxe4#
- 2.Qxe4#
- 1...Sxf6+
- 2.Sxf6#
- 1...Bxh7
- 2.Bf7#
- 2.Qxe4#
- 1...e1Q
- 2.Qxa2#
- 1...e1R
- 2.Qxa2#
- 1...Bf7
- 2.Bxf7#
- 2.Qxe4#
- 1...Sc3
- 2.Sb4#
- 1...Sf2!
- threat
- 1.Bd7?
- threat
- 2.Rc5#
- 1...Sxf6+
- 2.Sxf6#
- 1...Bf7+!
- threat
- 1.Rdc3?
- threat
- 2.R3c5#
- 1...Bf7+
- 2.Bxf7#
- 1...Sxf6+
- 2.Sxf6#
- 1...Sxc3
- 2.Sb4#
- 1...d3
- 2.Rxd3#
- 1...dxc3!
- threat
- 1.Re3?
- threat
- 2.Qxe4#
- 1...Bf7+
- 2.Bxf7#
- 1...Sxf6+
- 2.Sxf6#
- 1...Bxh7
- 2.Bf7#
- 1...Sxe3
- 2.Qxg8#
- 1...Sc3
- 2.Sb4#
- 1...Sf2
- 2.Qxg8#
- 1...dxe3!
- threat
- 1.hxg4?
- 1...Bf7+
- 2.Bxf7#
- 1...Bxh7
- 2.Bf7#
- 1...e1Q
- 2.Qxa2#
- 1...e1S
- 2.Qxa2#
- 1...e1B
- 2.Qxa2#
- 1...e1R
- 2.Qxa2#
- 1...Be6
- 2.Rc5#
- 1...Sc1
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...h3!
- 1...Bf7+
- 1.f7?
- threat
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bxf7+
- 2.Bxf7#
- 1...Sf6+
- 2.Sxf6#
- 1...Sxe5
- 2.Sc7#
- 2.Sf6#
- 1...e1Q
- 2.Qxa2#
- 2.fxg8Q#
- 2.fxg8B#
- 1...e1S
- 2.Qxa2#
- 2.fxg8Q#
- 2.fxg8B#
- 1...e1B
- 2.Qxa2#
- 2.fxg8Q#
- 2.fxg8B#
- 1...e1R
- 2.Qxa2#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sc1
- 2.Sb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sc3
- 2.Sb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sb4
- 2.Sxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sf2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sh2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Se3
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bxh7!
- threat
- 1.Sf8?
- Keys
- 1.Rf3!
- 1...Rxe5+
- 2.Rf5#
- 1...Bf7+
- 2.Bxf7#
- 1...Sxf6+
- 2.Sxf6#
- 1...Bxh7
- 2.Bf7#
- 1...Sxe5
- 2.Sc7#
- 1...Re3
- 2.Rxe3#
- 1...Rf4
- 2.Rxf4#
- 1...d3
- 2.Rxd3#
- 1...e1Q
- 2.Qxa2#
- 1...e1S
- 2.Qxa2#
- 1...e1B
- 2.Qxa2#
- 1...e1R
- 2.Qxa2#
- 1...Be6
- 2.Rc5#
- 1...Sc1
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf2
- 2.Qxg8#
- 1...Sh2
- 2.Qxg8#
- 1...Se3
- 2.Qxg8#
- 1...Rxe5+
- 1.Rf3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(j);SBLOCK::R1(I)
- B(j);CHECK,N_GUARD::B(M),XB(j)
- B(j);N_GUARD,XS(K)::B(M)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(f);OGATE::QAB(A),XB(j)
- S(f);SBLOCK,XP(F)::S(H)
- S(f);CHECK,XP(J)::S(K),XS(f)
- P(b);OGATE::QAB(A),XS(a)
- Tries
- Try
- S(K);
- Threat
- R1(I)
- Vars
- B(j);CHECK,N_GUARD::B(M),XB(j)
- Refutation
- S(f);CHECK,XP(J)
- Try
- B(L);
- Vars
- B(j);CHECK,N_GUARD::B(M),XB(j)
- S(f);CHECK,XP(J)::S(K),XS(f)
- B(j);N_GUARD,XS(K)::B(M)
- P(b);OGATE::QAB(A),XS(a)
- B(j);SBLOCK::R1(I)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(f);OGATE::QAB(A),XB(j)
- Refutation
- S(f);XP(F)
- Try
- B(M);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,XP(J)::S(K),XS(f)
- P(b);OGATE::QAB(A),XS(a)
- S(a);N_GUARD::S(H)
- Refutation
- S(f);
- Try
- B(M);
- Threat
- R1(I)
- Vars
- S(f);CHECK,XP(J)::S(K),XS(f)
- Refutation
- B(j);CHECK
- Try
- R(C);N_PINP(d)
- Threat
- R1(C)
- Vars
- B(j);CHECK,N_GUARD::B(M),XB(j)
- S(f);CHECK,XP(J)::S(K),XS(f)
- S(a);N_GUARD,XR(C)::S(H)
- P(d);OGATEB::R(C),XP(d)
- Refutation
- P(d);XR(C)
- Try
- R(C);N_PINP(d)
- Threat
- QAB1(A),XR(e)
- Vars
- B(j);CHECK,N_GUARD::B(M),XB(j)
- S(f);CHECK,XP(J)::S(K),XS(f)
- B(j);N_GUARD,XS(K)::B(M)
- S(f);OGATE,XR(C)::QAB(A),XB(j)
- S(a);N_GUARD::S(H)
- S(f);OGATE::QAB(A),XB(j)
- Refutation
- P(d);XR(C)
- Try
- P(D);XS(f)
- Vars
- B(j);CHECK,N_GUARD::B(M),XB(j)
- B(j);N_GUARD,XS(K)::B(M)
- P(b);OGATE::QAB(A),XS(a)
- B(j);SBLOCK::R1(I)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- P(g);
- Try
- P(J);
- Threat
- PXB(j)=Q
- Vars
- B(j);CHECK,OGATE,XP(J)::B(M),XB(j)
- S(f);CHECK,N_GUARD::S(K),XS(f)
- Refutation
- B(j);XS(K)
- Try
- Actual
- R(C);N_PINP(d),N_PINR(e)
- Vars
- R(e);CHECK,OGATEB,XP(F)::QAB(A)+R(C)
- B(j);CHECK,N_GUARD::B(M),XB(j)
- S(f);CHECK,XP(J)::S(K),XS(f)
- B(j);N_GUARD,XS(K)::B(M)
- S(f);SBLOCK,XP(F)::S(H)
- R(e);OGATEB::QAB(A)+R(C),XR(e)
- P(d);OGATEB::R(C),XP(d)
- P(b);OGATE::QAB(A),XS(a)
- B(j);SBLOCK::R1(I)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(f);OGATE::QAB(A),XB(j)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).